Complete the following paragraph. Fetal hemoglobin is essential for the survival of placental animals because Hb F has a affinity for O2 at oxygen partial pressures found in the placenta as compared to the oxygen affinity of Hb A. This difference in affinity for O2 allows O2 from the hemoglobin in the to transfer to the hemoglobin in the .
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In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .
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Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?
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Complete the following paragraph. Fetal hemoglobin is essential for the survival of placental animal...
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